> This set of patches is an extension of the proposed patch to handle netlink > uevent socket overrun reported by Randy Tice. > Mostly impacts users of Azure VF events (MLX5 and MANA). > > DPDK uses netlink uevent to track hotplug events reported by the kernel. Since > this is a one-way non-blocking channel there is no fool proof way to prevent > missing events if DPDK interrupt thread does not keep up. > > What this series does is: > - use netlink group to only receive events from kernel > - increase socket buffer to have more headroom > - report the problem more clearly in log > - document requirement for control threads
I tested the patch series for MANA. The test passed. > > Stephen Hemminger (4): > eal/linux: filter uevent Netlink in kernel > eal/linux: increase uevent socket buffer > eal/linux: report uevent socket overrun > doc: add warning about control threads > > .mailmap | 1 + > .../prog_guide/env_abstraction_layer.rst | 14 +++++ > lib/eal/linux/eal_dev.c | 56 ++++++++++++++++--- > 3 files changed, 62 insertions(+), 9 deletions(-) > > -- > 2.53.0
